Software Engineer II [UX Engineer - Design System]

Senior UX Engineer – Design System

Our Opportunity:

Chewy is growing! We're seeking a Senior UX Engineer – Design System to help architect and scale our enterprise design system powering experiences across web platforms. This role sits at the intersection of engineering, design, and developer experience — building the foundational UI primitives and tooling that enable product teams to move fast without fragmenting the user experience.

Are you passionate about building elegant, scalable UI foundations? Do you think in systems, not just screens? Are you motivated by enabling other engineers to build high-quality, accessible experiences?

If your answer is yes, read on…

Our Design System team is focused on building composable, accessible, and business-logic-agnostic UI primitives that power multiple application teams. As a UX Engineer, you will partner closely with Product Design, Accessibility, and Frontend Platform teams to create scalable architecture, robust theming systems, and world-class developer experience. Your work will directly influence the consistency, accessibility, and velocity of engineering teams across the organization.

What You'll Do:

• Architect and develop clean, composable, and extensible UI primitives using React and TypeScript
• Build business-logic-agnostic component foundations that can scale across multiple domains and teams
• Design and implement advanced CSS architecture and theming systems (design tokens, CSS variables, theming APIs)
• Ensure components meet and exceed WCAG accessibility standards, including deep ARIA pattern implementation
• Establish strong patterns for composition, state management boundaries, and extensibility
• Drive API design decisions with a focus on ergonomics and long-term maintainability
• Partner with designers to translate design tokens and Figma libraries into scalable engineering abstractions
• Build documentation, examples, and usage guidelines to optimize developer adoption and experience
• Create tooling, linting rules, and guardrails to prevent design system fragmentation
• Collaborate with application teams to support adoption and solve integration challenges
• Evaluate performance implications of component architecture and ensure lightweight, performant foundations
• Contribute to long-term platform strategy and frontend architecture decisions

What You'll Need:

• 5+ years of experience building modern frontend applications
• Deep expertise in React and TypeScript, including advanced patterns (compound components, controlled/uncontrolled APIs, polymorphic components, hooks architecture)
• Strong knowledge of CSS architecture, including theming strategies, design tokens, CSS-in-JS or modern styling approaches
• Demonstrated experience building and maintaining reusable component libraries
• Deep understanding of web accessibility (WCAG 2.x, ARIA patterns, semantic HTML)
• Experience architecting frontend systems consumed by multiple teams
• Strong understanding of component API design and developer ergonomics
• Experience creating or contributing to documentation systems (Storybook, MDX, etc.)
• Strong collaboration skills working cross-functionally with design and engineering
• Bachelor's degree in Computer Science or related field, or equivalent experience

Bonus:

• Experience building or scaling an enterprise Design System
• Experience implementing multi-brand or multi-theme architectures
• Familiarity with design token pipelines and automation
• Experience with frontend build tooling and bundling strategies
• Experience creating code mods or migration tooling to support system evolution
• Knowledge of performance optimization techniques for component libraries
• Experience mentoring engineers and setting frontend standards
• Background in e-commerce or high-scale consumer platforms
• Experience working in Agile environments

The base salary range for this role is $120,000 - $190,000.00.

The specific salary offered to a candidate may be influenced by a variety of factors including but not limited to the candidate's relevant experience, education, and work location. In addition, this position is eligible for 401k and a new hire and annual equity grant. C08+ positions may also be eligible for annual bonus.

We offer different types of insurance and benefits, such as medical/Rx, vision, dental, life, disability, hospital indemnity, critical illness, and accident. We offer parental leave, family services benefits, backup dependent care, flexible spending accounts, telemedicine, pet adoption reimbursement, employee assistance program, and many discounts including 10% off pet insurance and 20% off at Chewy.com.

Exempt salary team members have unlimited PTO, subject to manager approval. Team members will receive six paid holidays per year. Team members may be eligible for paid sick and family leave in compliance with applicable state and local regulations.

Chewy is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, ancestry, national origin, gender, citizenship, marital status, religion, age, disability, gender identity, results of genetic testing, veteran status, as well as any other legally-protected characteristic. If you have a disability under the Americans with Disabilities Act or similar law, and you need an accommodation during the application process or to perform these job requirements, or if you need a religious accommodation, please contact View email address on click.appcast.io.

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